irretrievable
adjective
not capable of being retrieved; irrecoverable; irreparable.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
And I think that obsession with the irretrievability of youth is very much a phenomenon in all secular, prosperous, consumerist democracies, where grown men have collections like Abe's and are very worshipful of things.
From Reuters ● Jul. 26, 2012